SimIcons vs SimIcons1024

Something strange has happend to my FS9!The default Boeing 737 use SimIcons.cab for the icons on the 2D-panel.But now I cant see the icons any more. When I switch to SimIcons1024.cab I can see the icons again.I use FSPanelStudio to shift the icons and in FSPanelS I can see the icons from both Simicons.cab and SimIcons1024.cab.My OS is WinXP 32bit.I do have same problems in other panels, I can see the gauges in FSpanelStudio but not in FS9.What has happend?Or what should I do to see the gauages again?/Jonny