mupen64 somewhat jerky video

[coldstatue]

Hey all, I have mupen 64 running, and I'm getting a sort of skipping in the video. I'm not sure of the technical term. For instance, if there is a long camera zoom, it's like certain frames are skipped, and the camera jumps ahead a step. I have 3.0 Ghz pentium 4 , 1.5 MB RAM, and 256 MB VRAM. I've tried fiddling with the mupen64 video settings, which I don't understand. Regardless, I've tried every combination of settings. I'm getting an average of 28 frames per sec. Everything works, but it takes away from the overall experience. Seems like my system specs should be sufficient to emulate a Nintendo 64. Am using the gln54 plug for vid. Any suggestions?
Thanks.

EDIT _ I'm using Feisty

[Fell]

If you have the Desktop Effects enabled in feisty try switching them off before running Mupen64.

[coldstatue]

ok, thanks,. i do use beryl. I'll give it a shot and post back later, in case anyone else is having the problem.

[hikaricore]

I have 3.0 Ghz pentium 4 , 1.5 MB RAM, and 256 MB VRAM.

I hope this is a typo ^_^ otherwise, problem solved. rofl