basically, when fade is set to > 0, a few pixels from the rightmost part of the text is missing, like shown on the attached sshot
firefox 3.5.7
windows 7 x64
default theme
colorfultabs 4.1
cooliris 1.11.6
download statusbar 1.3.0
download helper 4.6.5
downthemall 1.1.8
flagfox 3.3.20
tab progess bar 0.6