More QuickBooks adventures

My previous post detailed some recent adventures with QuickBooks (Simple Start 2007 Version). After the full reinstall, things worked great again for a couple of weeks, and then one of the wizards I use started getting JavaScript "object not found" errors. Surprisingly, some of the product appears to be written in JavaScript. Unlike the previous error, the software still more or less worked. After some poking around, it turns out there is a free upgrade to "Simple Start 2008" so I did that which involved a transform of my company file from 2007->2008 format. It seems "all better" now, but within a month, Quickbooks has gone south twice. Since I use this tool for my business (most importantly doing invoices), I'm a bit worried.