@moshu: I erased the NEOCOUNTER from my sidebar and, YES, it was tat tool! No background color problem anymore. Thanks very much for your quick help!!
Strange, I wonder why this tool, that I’ve running since 7 months now, has this problem for the first time.
Too bad, that I pay for this little counter/statistik thing ??
How is it with you, mujahideenryder, got your blog working again?