9/17/2011 hi. i have the same issue with a 2.2 froyo rooted captivate. i am not going to list my memory capacities as i have murdered all bloatware, and trust me, i have plenty of memory, internal, internal sd card, and the external sd card i have installed. i do not have a large amount of installed apps from market; maybe 10. i am using busybox donate, titanium backup * root, titanium pro key * root, superuser and superuser elite. bottom line, the INSUFFICIENT SPACE error, for me, was and is false. for me, it was a false error, and yet i still get it everytime i download an app. i have cleaned cache, i have forced closed all apps possible, bla, bla, bla. nothing worked. i found, after wasting many hours of useless efforts, if i just turned my phone off, removed my battery, and then on again, every new app i downloaded was and is successful. this has worked every time i got the false error message. why? i do not know. as i said, i have very few apps, and all apps (except titanium backup which is not supposed to be on your sd card per the developer who i directly asked) that i do have are on my external sd card. the error is a lie, at least for me, as i have plenty of internal memory. edit: it just dawned on me - since i close a lot of unused/running apps, and using the samsung stock task manager app, in addition to another cache cleaner, and killing/closing apps, i may be closing an internal app which may tell market if there is enough space available. i think this may be why the insufficient space error comes up, since when i turn my phone off, then back on, i do NOT close any apps, i just go directly into market and try to download a new app, and this has always worked... i do not know what app i have closed or killed that causes the insufficient space error..... myself - i would rather end needlessly running apps and save my ram, battery and cpu, and the few times i download a new app, i just turn off, then on, and problem solved. for me, i don't mind the extra steps since overall i prefer to force close unneeded apps..