I am a Warcraft 3 fan and while waiting for a game to open I Alt-Tab out and play Spider Solitare. This was never an issue with Vista, but now with Windows 7 when the War3 game starts the windows tries to switch back to it as it did before with Vista, but is stopped by the Error message "Failed to create DirectX device." Closing the message results in termination of the Spider Solitare game but does not affect anything else. I can then click on War3 on the taskbar and go to the game. I was selected to host a Windows 7 party and received the Ultimate Signature Edition for free. This is the ONLY BUG I HAD after the 1 hour and 10 minute Upgrade from Vista Home Premium. VITALS: Microsoft Windows 7 Ultimate 32-Bit Version 6.1.7600 Build 7600 Intel(R) Core(TM)2 Quad Q6700 @ 2.66GHz, Memory (RAM) 4.00 GB nVidia GeForce 9800GTX 512M 1TB HDD RAID0 + 1TB External USB w/BitLocker Board: EVGA 122-CK-NF68 2 Is this a DirectX 11 bug? Need a work around if any.