Re: Flash acts weird
Are you running 32-bit or 64-bit Linux? If you get the wrong bit flash it will not work natively. And when you say Chrome, are you actually running Google Chome or chromium-browser?
The usual way to install flash in Ubuntu is to install flashplugin-installer (or ubuntu-restricted-extras which includes flash and a bunch of codecs). That should automatically work for firefox, chromium browser, etc., but if you installed some other flash that does not work, you may need to remove that first.
Not sure about Google Chrome though, I tried running a version of that for a PC and it would run in virtualbox, but I could not get it to boot from USB stick on my Acer W500P tablet PC (which boots 64-bit Ubuntu and Lubuntu 12.04 from its internally USB connected SD card slot).
i5 650 3.2 GHz, 8 GB, nvidia GTX 750 Ti, 32" 1080p | i7-4700MQ, 8 GB, Intel HD 4600/nvidia GTX 765M, 15.6" 1080p | etc.