okay. my friend just installed photoshop 7 on his imac. (G3). it's running 10.1.2. the install material says that photoshop 7 should only be installed on 10.1.3 or later, but friend ignored this and installed anyway. after the install and restart, the mouse won't work. he's fixed permissions etc, and all the messages he gets say "keys out of order". when he starts from the install disk, it's all fine. so what needs to be repaired? where's it going wrong? what does "keys out of order" mean? and what should he do now?