Omega drivers - buggy or not?

Till yesterday I was using Omega drivers (for 2 years) for my radeon 9500pro graphic card. I had no problems, and I played a lot of games. Anyway, I heard that the drivers are buggy and the games crash...
A few days ago I installed Men Of Valor (using latest omega) and the game crashes every 5 to 10 minutes. I tried to lower the details, resoluton, but nothing helped. Icould live with that. Then I installed Pro Evolution Soccer 4 (I was playing PES 3 with omega and had no problems at all), and the game crashes all the time. At the end I tried the latest Ati catalys drivers, and now the games are working fine. So, does anyone have the same problem (since the omega drivers are optimised for cards like 9500pro, I find this a minor problem. I can live with catalyst :-))?