Windows 7: DVD not playing video

My pc has intel 915 gav board, win 7 home premium, 2 gb ram with 3.0 ghz cpu and nvidia 512 mb graphic card installed. I have connected samsung lcd monitor with hdmi cable. I got educational dvd containing video files with .swf extension. There is one .exe file. This dvd runs well with another system (Auto plays it) using my monitor with vga port. But if I play this dvd (run .exe file) with my pc, I get only Blank window of Adobe Flash Player 9 and nothing plays.

I can not use vga port of my motherboard as it is not working.
It seems that nvidia grahic card is conflicting something. Pl tell me somebody how to play this dvd.

well flash has nothing to do with vga cards, can you post your main .exe and a single swf here ?

Thank u for reply. I removed my nvidia graphic card. Monitor connected to vga port and now dvd playing ok.

if you click the paperclip on the quick reply box when you make a post then there is a attachments manager to add files ,browse to them