CPR Glide full screen

I have installed both the Microsoft patch and triglide.dll patch and checked that I have Glide 2.43. Under render, I am able to select "3dfx". Once I want to start the game, I get a warning message that says it is unable to open a full screen. The game is only able to be played in a window. Any clues as to what is wrong? Thanks in advance.

>>I have installed both the Microsoft patch and triglide.dll patch and checked

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>>that I have Glide 2.43. Under render, I am able to select "3dfx". Once I >>want to start the game, I get a warning message that says it is unable to >>open a full screen. The game is only able to be played in a window. Any >>clues as to what is wrong? Thanks in advance. >Voodoo 1 & 2 Glide games will only run full screen. >The CPR patch is only for Voodoo 1 & 2. >If you have a Rush-based 3DFX card, it won't work. >If you have a Voodoo 1 or 2, try sizing your desktop >to 640x480x16 before running the game. I haven't >heard of this problem, but ya never know. >-- >* rrevved at mindspring dot com *

I am running a Voodoo1. Seems to work if I set the desktop to 640x480x256. 256 is the minimum required. Thanks rrevved.