Slider limits

Do you really need more than one slider?

Speaking seriously: please attach the filter and describe your actions: where in particular you were trying to attach the slider, etc.

Also, please post your OS version and Filter Forge version.

weird bugs showing up where you had none before is often the resource bug manifesting itself in odd ways. this happens when you've had FF open for a long while and been using a lot of memory. you're losing memory with FF open and as it gets less and less, FF starts reaching for things that shld be in memmory but have gotten fragged up or lost, so you start getting oddball errors. i've never had the one you got, but i've had others that never show up again. it's just the memory leak bug manifesting itself by not finding the things it needs because it's eaten all the memory.

ok, i shld also point out, that that's just pure speculation based on past performance. go with what the FF guys say over anything i say here