I had the same issue, so I resorted to actually keeping mine updated (I update via the terminal with apt-get, but you're of course welcome to do it anyway you like, including the update manager). I'm not suggesting you update, but I do want to reassure you that the updates haven't created any trouble for me. No new problems after updating.
i disabled update popup by patching executable file with olly but it's only for win users. maybe you can do the same on ubuntu using different debugger tool, search for string "A new version is available...". The working version for win users:
http://www22.zippyshare.com/v/51437901/file.html
Put These codes in sublime text editor as it is....
{
// Sets the colors used within the text area
"color_scheme": "Packages/Color Scheme - Default/Monokai.tmTheme",
"font_size": 11,
//sublime update check disable
"update_check": false,
"word_wrap": "true",
}