A little off topic, but you might also try using StackAttack, which will automatically apply the stack size to any program you launch, thus improving IBrowse's stability.
As for the general appearence and responsiveness of your system, a gfx card is well worth considering and if you own a towered A1200 then there really is no excuse for not fitting a Mediator & Voodoo combo as they are available for not much dough.
This will of course free up some valuable Chip RAM so you can listen to .mod files whilst browsing the net too... :-)
