Hi, I'm working on vim/gvim ver. 7.2 (Ubuntu) - without any plugins or modifications in .gvimrc / .vimrc. For last weekend I try to work with ruby and php code. Everything works fine except performance. When I turned on syntax (syntax on, no colorscheme) scrolling file was very, very sluggish (79 lines of code without wraped lines). When I turned off syntax everything works fine, Vim is 100x faster ... On console with vim I've the same problem.

I'm trying now with wrap and nowrap, others colorschemes etc. in .vimrc but without good results.

Please help me, because broken syntax highlighting makes Vim unusable for me

Check carefully when and with which syntax highlighting this actually happens (maybe it's just one error in a single highlighting-file) - try out other programming language syntax files. If it's just one file, exchange it or get an older one - or maybe there's already an update.

If all that doesn't help, update (downgrade) your vim-package or re-compile your own (it's really simple) and try again afterwards.

This should not be happening.