so, on occassion, when using X1c with 4 gb ram, particularly during a mixdown, the application freezes and i have to go to task mgr to close out.  At this point, it tells me that the error is apphangb1  and here are the details below.  Any thoughts on how to prevent this ?

A problem caused this program to stop interacting with Windows.

Problem signature:
  Problem Event Name:    AppHangB1
  Application Name:    SONARPDR.exe
  Application Version:    18.0.3.319
  Application Timestamp:    4e42bf6a
  Hang Signature:    51c1
  Hang Type:    2048
  OS Version:    6.1.7600.2.0.0.256.1
  Locale ID:    1033
  Additional Hang Signature 1:    51c1eb4f4a57b0007c68c2205a4928ba
  Additional Hang Signature 2:    cf39
  Additional Hang Signature 3:    cf3985b96174d591e9a50f1c0489bcad
  Additional Hang Signature 4:    51c1
  Additional Hang Signature 5:    51c1eb4f4a57b0007c68c2205a4928ba
  Additional Hang Signature 6:    cf39
  Additional Hang Signature 7:    cf3985b96174d591e9a50f1c0489bcad

any help ??

Those kinds of errors (meaning critical crashes) usually need to be handled by Cakewalk tech support. That's your best bet for getting an answer.

Scott

--
Scott R. Garrigus - http://garrigus.com
* Author of the Cakewalk Sonar and Sony Sound Forge Power book series: http://garrigus.com/?PowerBooks
* Author of the Cakewalk Sonar ProAudioTutor video tutorial series: http://garrigus.com/?ProAudioTutor
* Publisher of the DigiFreq free music technology newsletter: http://digifreq.com/?DigiFreq
* Publisher of the NewTechReview free consumer technology newsletter: http://newtechreview.com/?NewTechReview

I'm no expert, but from my limited knowledge, AppHang points to a general system issue, possibly driver-related. I agree with Scott; this is one for a tech support call.

So that the project can open again, with this kind of error in W7 go to organize, folder and search options, view, abilite show hidden files and folders.
Then go to Cakewalk Projects, open the folder that your music and delete the file (cwp.assets) and renicie the computer.
For me it worked, did not lose anything and I can finish my project.
Probably the error was recorded this damn file, and when u open it again create another without the error in question was worth, and rock!
Ps. Uncheck hidden files and folders.