Strange annoyance in Illustrator 10

Although I convinced my work place to purchase alteast 3 licenses of illustrator CS I regret making that choice, it will be a long time again before I risk buying another Adobe product.

So since then we have reverted back to 10, here is the problem, selecting ojects require exact presicion to make them activate, not sure if it's the tolerance issue or what but it makes difficult to function especially the selecting text, I can try to select text but most often I have to click more than once to have it selected, and if I wish to do multiple selections than sometimes all the that I have selected are deselected forcing me to start all over again.

Like I said I tried to play around with the tolerance but it does not help.

Hope I'm making sense.