XFX ATi Radeon HD 5770 & Windows 7. How the fuck do I force V-sync to stay enabled?

[RixxzIV]

I just recently got GTA San Andreas from the massive Steam sale, and when the FPS reaches a certain level, annoying glitches occur (The physics engine gets seizures). I got around 180FPS with everything maxed, and I felt like recording one of them glitches, but as soon as I start recording with Fraps, the FPS dives down to around 65, and the glitches stops occuring. Since I see the pattern in this, I turn Framelimiter on in the settings, the glitches ceases to occur, but it limits the framerate to 30, which is a big no. So I google'd around, and found this option:

[URL=http://img607.imageshack.us/i/atifsdf.png/][IMG]http://img607.imageshack.us/img607/1645/atifsdf.png[/IMG][/URL]

I switched that to "Always on", and guess what? My FPS weren't limited at all. So after another 20 seconds of googling, I find out that the option in question doesn't function in Windows 7.
So how the fuck am I supposed to limit my framerate to 60FPS, then?

Thanks in advance.

[editline]7th November 2010[/editline]

Why the fuck did I get a gaybow for this?

[James1o1o]

Turn the graphics settings up as far as possible in san andreas, and in Catalyst put on 8x AA with Adaptive, that will sure pull the frame rate down a little (but not too much).

[RixxzIV]

[QUOTE=bootv2;25914446]mod gta-sa to triple the draw distance. this should get your fps down alot. [b]and what sort of glitches are we talking about?[/b][/QUOTE]

The cars will get a lot more weight than they should I.E, releasing the throttle pretty much gives the same result as braking.

Here's a screenshot to explain what I mean:

[URL=http://img340.imageshack.us/i/gtasa2010110716145406.png/][IMG]http://img340.imageshack.us/img340/2755/gtasa2010110716145406.png[/IMG][/URL]

Also, I installed the mod that makes the draw-distance 10x higher, and while it makes the game look quite cool, it only decreases my framerate by around 5 FPS.

And the thing James1o1o suggested, I tried all kinds of different combinations, and it either decreases my framerate way too much, or it's bareably noticeable. :v:

[RixxzIV]

[QUOTE=bootv2;25917500][b]well then mod it to draw 100x further.[/b] this will pretty much harshly decrease your framerate. if that's too much keep changing the distance until you've got a fine distance[/QUOTE]

It already draws the entire map. If I do that it'll just draw a shitload of water, which won't really do anything.