> I have this REALLY weird problem right now. My whole X has suddenly > started to be really slow. KDE used to be really snappy and nice to > use, now it's really sluggish and slow to respond.
Have you changed your firewall settings lately? This slowness happened to me once when, by mistake, I set the default policy in the iptables nat and mangle tables to DROP. That stopped all traffic on the loopback interface, which made my whole system (but especially KDE) slow to a crawl. Took me about a week to figure it out. You can check this easily. Run the following commands as root: # Allow all traffic to pass on the loopback interface iptables -A INPUT -i lo -j ACCEPT iptables -A OUTPUT -o lo -j ACCEPT # Set default ACCEPT policies on the nat and mangle tables iptables -t nat --policy PREROUTING ACCEPT iptables -t nat --policy POSTROUTING ACCEPT iptables -t nat --policy OUTPUT ACCEPT iptables -t mangle --policy PREROUTING ACCEPT iptables -t mangle --policy INPUT ACCEPT iptables -t mangle --policy FORWARD ACCEPT iptables -t mangle --policy OUTPUT ACCEPT iptables -t mangle --policy POSTROUTING ACCEPT Good luck, Andrew.