CorelDRAW X6 (64-bit) has stopped working

Upgrade to X6 about 10 days ago and at least initially, I was saving in both X5 and X6 formats because I've learned that you can't always trust a new version of Draw. Love the application but, as all long-time users know, new releases have a history of instability.

After a few days of fairly heavy use, it seemed like I was not going to have the usual problems and I stopped saving my work in X5 format. Probably a mistake because two days ago, it started crashing regularly on just about any document I've created with X6 and the crashes have become more frequent yesterday and today.

For the record, Win7 Pro 64-bit, 8gb RAM, Core 2, dual nVidia 8600GT cards with current WHQL driver, and a 250gb SSD boot drive. Data drive is a 750gb spindle with 450gb free.

When it crashes, the problem details are as listed below.  I've tried resetting the workspace <F8> and, have done a repair from the installation routine, no avail. All my current documents are mostly curves, text, some Lens and some Extrudes. If anyone can shed some light, I'd appreciate it but I think for the time being, I'm going to save all my X6 files back to X5 and stick with the previous version.

TIA,

Kilobravo

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Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    CorelDRW.exe
  Application Version:    16.0.0.707
  Application Timestamp:    4f4c60a4
  Fault Module Name:    CRLCLR.dll
  Fault Module Version:    16.0.0.707
  Fault Module Timestamp:    4f4c60eb
  Exception Code:    c000041d
  Exception Offset:    00000000000350aa
  OS Version:    6.1.7601.2.1.0.256.48
  Locale ID:    1033
  Additional Information 1:    bbf4
  Additional Information 2:    bbf4366adc015c7ac77df54f7afd5eca
  Additional Information 3:    3b04
  Additional Information 4:    3b045daaeb4518b10111589a140a3e97