I'm posting this thread in hope that some one already had this problem and
found a way to solve it.

I'm currently developing a spring web app with a strong client side component (extjs) and the IDE is constantly crashing i had to disable javascript building, validations and all and still slow as hell and crashes constantly
i lost count on how many times i had reinstaled the IDE.
Above all this Javascript code completion doen't work only for things in the same file (and if it doesn't crash)

I have the 2.8.1 version of STS, currently working with a i5 2G with 8G ddr3....
Theirs got to be something that i can do.

Currently looking for a solution even if it means changing IDE.

thanks in advance.