Today i have done upgrade the kde from 3.5.5 version to 3.5.6. i think kde 3.5.6 is better and more stable. many bugs have fixed. and i feel it more faster than before. especially when the kde is booting up. its take less time than before. I also have recompile the kernel 2.6.18.5 so it support Filesystem in Userspace (FUSE), Quota Support, and native language supports (Codepage 850 (Europe), Codepage 864 (Arabic) , Simplified Chinese charset (CP936, GB2312),Traditional Chinese charset (Big5) , Japanese charsets (Shift-JIS, EUC-JP), Korean charset (CP949, EUC-KR), Thai charset (CP874, TIS-620), NLS ISO 8859-1 (Latin 1; Western European Languages), NLS ISO 8859-15 (Latin 9; Western European Languages with Euro), NLS UTF-8 )