Maybe this is why Cakewalk Support gave up on me too.  None of the standard answers work.
 
Ben

The error referencing aticfx64.dll in the OP is the graphics driver. Maybe Sweetwater can help you get the correct driver for your system. You may want to ask them about firmware updates too.
 
Often times when SONAR crashes on exit it is plug-in related. This may require some testing on your part to determine which plug-in is failing to unload.

Hmm.  Okay.  I tried downloading the most recent Intel driver for my graphics card, and it said I had the most updated one, but let me focus in on this issue and see what happens.  I find it difficult to pinpoint my exact graphics card, because the one listed doesn't seem all that specific.  I will call Sweetwater if I can't figure it out myself.
 
I doubt it's a 3rd party plug-in issue, because I've been using mostly Sonar stuff lately.  I do use the UBK-1, but I haven't had any trouble with it before.
 
Thanks,
Ben

If Sonar is crashing when you add an instance of an LP plugin, it's unlikely to be caused by a 3rd party plugin. It maybe that the LP plugins are asking your graphics card to render it in a way your graphics card is not currently capable of so updating the drivers may well fix the issue. I guess it was a mistake when you said you think your graphics card is an Intel i5? That would be your CPU. Your graphics card is more likely to be an Nvida or ATI chip set. The best way to find out is to right click on My Computer, click properties then click on Device Manager. In Device Manager look for Display Adaptors and click on it to expand it. Your graphics card should be listed there.

ben1973
I doubt it's a 3rd party plug-in issue, because I've been using mostly Sonar stuff lately.  I do use the UBK-1, but I haven't had any trouble with it before.

Crash on exit still could be a plug-in issue. Any plug-in could be the culprit.
 
There is a way to alter the behavior of the L-Phase plug-ins. While it is a solution for a different issue, it might prevent them from crashing in this case. From http://forum.cakewalk.com/FindPost/3555087

Logan Thomas [Cakewalk]
1. Go to C:\Cakewalk Content\LP EQ\Settings
2. open LPEQ.cws in notepad
3. somewhere in that string you will see the words EnableOpenGL="1"
4. change that to EnableOpenGL="0" (make sure not to change any other things)
5. save the file and do the same in C:\Cakewalk Content\LP MB\Settings

scook

ben1973
I doubt it's a 3rd party plug-in issue, because I've been using mostly Sonar stuff lately.  I do use the UBK-1, but I haven't had any trouble with it before.

Crash on exit still could be a plug-in issue. Any plug-in could be the culprit.
 
There is a way to alter the behavior of the L-Phase plug-ins. While it is a solution for a different issue, it might prevent them from crashing in this case. From http://forum.cakewalk.com/FindPost/3555087

Logan Thomas [Cakewalk]
1. Go to C:\Cakewalk Content\LP EQ\Settings
2. open LPEQ.cws in notepad
3. somewhere in that string you will see the words EnableOpenGL="1"
4. change that to EnableOpenGL="0" (make sure not to change any other things)
5. save the file and do the same in C:\Cakewalk Content\LP MB\Settings

Sorry for the hijack ...
I wonder if EnableOpenGL has anything to do with my occasional display / ghosting issue?
http://forum.cakewalk.com...projects-m3494049.aspx
Scook ... I'd appreciate your opinion. Thanks.

The setting is specific to the L-Phase plug-ins.

scook
The setting is specific to the L-Phase plug-ins.

No other open gl settings for Global sonar?

As mentioned above, it is very important when updating graphics drivers to only use those provided by the manufacturer. If you are using an on board Intel graphics chip, say in a laptop, then the manufacturer may have made customizations to it and so the generic Intel driver will not work correctly.

If drivers are an issue, you might want to try the free version of Iobit's Driver Booster. You can choose to either let it do updates or do them yourself, but it would at least define most of the problematic drivers on your system.