OpenOffice Not Finding JAVA + Windows 7 Ult 64X

OpenOffice Not Finding JAVA + Windows 7 Ult 64X
I've now encountered this problem several times; I get an error message when OpenOffice starts and I am unable to bypass it. I have to force quit the program, UN-install and re-install it.The exact error msg stats something to the fact of OpenOffice not being able to find Java under the Path 'Tools>Options>Java Use a Java Run-time Environment'.

This wouldn't be so irritating but; I have ton's of add-on's and it takes awhile re-install each one.

Also I experience slow performance, however NOT AS SLOW AS LIBRE Office any one have any idea's?

Any help would greatly be appreciated!

-Matthew
meb