sounds for me really strange. what distribution are you using? version of xorg/xorg-server? does it happen to older versions of maxide? what arch are you using? 32bit or 64bit? if 64bit...are you using a chroot or a multilib system?
top - 17:49:42 up 1:24, 0 users, load average: 0.02, 0.14, 0.17 Tasks: 90 total, 1 running, 89 sleeping, 0 stopped, 0 zombie Cpu(s): 2.1%us, 0.3%sy, 0.0%ni, 97.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 2059056k total, 1433560k used, 625496k free, 76084k buffers Swap: 2096472k total, 0k used, 2096472k free, 760308k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3847 stephan 20 0 568m 162m 27m S 5 8.1 2:16.57 firefox 3720 stephan 20 0 942m 231m 26m S 3 11.5 0:53.16 java 3559 root 20 0 164m 72m 23m S 1 3.6 2:32.52 X 3971 stephan 20 0 11640 8224 2408 S 1 0.4 1:16.29 MaxIDE 6204 stephan 20 0 10592 1220 924 R 0 0.1 0:00.01 top 1 root 20 0 3796 620 536 S 0 0.0 0:00.49 init 2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd 3 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/0 4 root 15 -5 0 0 0 S 0 0.0 0:00.09 ksoftirqd/0 5 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/0 6 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/1 7 root 15 -5 0 0 0 S 0 0.0 0:00.35 ksoftirqd/1 8 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/1 9 root 15 -5 0 0 0 S 0 0.0 0:00.38 events/0 10 root 15 -5 0 0 0 S 0 0.0 0:00.06 events/1 11 root 15 -5 0 0 0 S 0 0.0 0:00.00 khelper 12 root 15 -5 0 0 0 S 0 0.0 0:00.01 kblockd/0