Bizarre crashes

[Win]

Anyone ever heard of the following problem? --

I load a Quicktime video file into Pro Tools 7.4. It loads fine and runs fine. I work on a sytem with two 19inch monitors. When I try to drag the video window from one monitor to another... Pro Tools crashes.

This is a recent phenomenon -- I'd been dragging video windows back and forth from one monitor to another for a long time with no problems and now... Pro Tools crashes without fail whenever I try to do this.

Anyone know what might be causing this?

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Pro Tools 7.4 TDM
Mac Dual 2.5 GHz PPC G5, 8 GB DDR SDRAM, OSX version 10.4.11

[DigiTechSupt]

What codec is this video using - H.264 perhaps? If so, you should try converting it to another format - DV or Motion JPEG-A and try again.

H.264 seems to be problematic on some systems.

[Win]

Good call! The video was using H.264. I translated it to DV and now it no longer crashes the session when I move the window from one monitor to another. Thanks.