T61 Drivers after a reformat?

[dai]

I just received my T61 yesterday. The model is 7658-CTO (I think that's the model number). Anyway, I had it reformatted and now I'm wondering which drivers are essential. My screen seems dimmer now, though I think I already installed the video and/or display drivers. I just need the essential drivers that will get this laptop running. Which one will make my laptop as bright as it was before I reformatted again? Which driver is the one where if you adjust sound/screen brightness, a bar on the screen shows the level of sound/screen brightness? Anything else that would be useful? The power manager?

Thanks for the help!

edit: I should have said I formatted to Vista Ultimate if that makes a difference. Also, I restarted and the screen brightness issue seems to be fixed. I can now adjust the brightness to a higher level. I guess the only thing bugging me now is the lack of sound/screen brightness bars when I adjust them.

edit2: I'm not going to use the ThinkVantage software (unless you have really persuasive reason that I'm not aware of). Is there a way to program it to launch other programs instead? Thanks and pardon my computer ignorance.

[dai]

I might reformat once again and install the 64bit version of Vista instead. This will complicate the whole drivers issue won't it?

[sktn77a]

Sounds like you need the OSD (On Screen Display) driver installed.

[dai]

Sounds like you need the OSD (On Screen Display) driver installed.

Yeah, I did, but it didn't work. I looked around and someone reported that a lenovo rep told him that he needed to install three other drivers (I don't remember exactly which one at the moment) before installing a 4th one. So I will have to reformat again, which I was going to do anyway since I'm going to try to switch to 64bit.