With Power DVD 11 Ultra, build 2211.53, I have been getting system crashes--without blue screens--during playback of two Blu-ray disks: X-Men First Class and Limitless (rental editions from Netflix). I had to turn off my power switch and reboot each time.

I have only two amateurish ideas as to what MIGHT be causing the crashes. 1) The crashes seem to take place when I am clicking something with my mouse on the movie screen. 2) I set my own virtual memory, instead of letting my system manage it. I have 6 GB of RAM, and I set my virtual memory to three times that (18432 MB).

Note: I was able to watch X-Men First Class after a fresh installs of Power DVD 11 Ultra and the 2211.53 build (which also required a new installation of Power DVD 9 Ultra, since I bought the upgrade version of Power DVD 11 Ultra). That was yesterday. Today, however, I have crashed my system twice while trying to watch Limitless. I am about to try watching Limitless again.

Here are my system components, followed by a dxdiag readout for my Win 7 64bit OS.

Manufacturer: CyberPower Inc.
Operating System: Windows 7 Home Premium 64 bits Build 7601: Service Pack 1
CPU: Intel Core i7 Extreme 975
Motherboard: MSI X-58 Pro-E (MS-7522)
Memory: 6GB DDR3 (3 x 2GB) Spec Tek Incorporated
Graphics: NVidia Ge Force GTX 295 (driver v. 8.17.12.8026)
Sound: Creative Labs X-Fi Xtreme Gamer (driver v.2.18.0015, or v.6.0.1.1375)
Hard Drive: Western Digital Raptor 300GB 10,000 RPM
Mouse: Logitech HID-compliant G9 Laser Mouse (driver v.4.82.4.0) (USB)
Keyboard: Ideazon Merc Stealth (USB)
Optical Drive: LiteOn iHAS124 SATA SuperAllwrite 24x DVD-RW
Optical Drive: LiteOn iHOS104 Internal 4x SATA BD-ROM
USB Hub: SFE Tech 10-port dynamic high-speed USB hub
Monitor: Samsung SyncMaster 2443 24" Widescreen LCD (5ms, 50,000:1, 1920x1200)
DVD software: PowerDVD 11 Ultra Version 11.0.2211.53
Antivirus/Firewall: AT&T Internet Security Suite (powered by McAfee)
Printer: HP Officejet 6500 E710a-f

P.S. Make that three new Blu-ray movies. Power DVD 11 Ultra crashed on me about 9/10 of the way through The Adjustment Bureau. I finished watching it, without a glitch, by using Total Media 3 Platinum, which I also used to watch Limitless, though I did not try it with X-Men First Class