A couple of years back, the upgrade to CF 9 caused a problem with cflayout, whereby the first tab would not be aligned properly. The fix was twofold:
Recently, I applied cumulative hotfix 4 and it appears to have broken cflayout again, causing the exact same problem. I see that there is a cflayout.js file in the hotfix folder, dated 2/6/13, that was copied to /cfide/scripts/ajax/package as per instructions.
I was able to "fix" the autoheight problem by simply copying the cflayout.js file I had edited in August 2010 from my production server. But I am worried about what other problems may result. I compared the files, and there are many, many differences. The var _70 line is completely different.