Installing fglrx makes SUSE unloadable

I’m trying to install fglrx for my Radeon HD 2600 XT (openSUSE 11.0 w/ KDE4). I’ve tried three different ways of installing fglrx (one-click install, package D/L, rpm) but every time I get finished with the install and restart Xwin I get a corrupted screen of just blue and black squares. Thanks in advance for any help.