Uploading - Driver problem?

I have 2 arduino unos (an older one and an R3) and both are showing the same problem, I am using a win 7, 32bit compuer. I could not get either to upload using ver022 ((avrdude: stk500_getsync(): not in sync: resp=0x00)) but I down loaded ver 1.05 and can now upload to both.

Sounds OK but - I have a sketch that is the firmware for an eggbot I just built and I can compile the sketch on 022 but it won't upload. It won't compile on ver1.05 but I can up load sketches to both unos using ver1.05.

Any help will be greatly appreciated....