Runs on one pc, but not the other ,same prog, xp-pro on each

Ive a radio prog that gives 'digital filtering' , I can run it on one

pc thats a intel p111 1.1 Ghz , running xp-pro , fully up to date ,

works fine ,

Try it on the second pc , intel p4 3 ghz pc running xp-pro , up to

date , and the prog wont run , click on it and nothing looks to

happen , check the 'process box' and you can see the application

listed , but nothing showing ,

the older p3 has a agp video card and the p4 a pci extream , but

everything ealse looks to be working 'ok'

If i access the file from the 'good' pc across the network, the prog

runs on the other pc

... is there some folder setting that may be previnting the prog

running , but i dont know why the prog is showing in the process box

and 'not' on the screen ?

Tnx

G ..