vBSEO + xCache

I installed xCache on my server over the weekend and fired it up today, and I enabled the xCache option in vBSEO but when trying to view vbseocp.php its just a blank page.

Heres the xCache config

Code:

[xcache-common]
extension = xcache.so

[xcache.admin]
xcache.admin.enable_auth = On
xcache.admin.user = "notreallythis"
; xcache.admin.pass = md5($your_password)
xcache.admin.pass = "almostgotme"

[xcache]
; ini only settings, all the values here is default unless explained

xcache.shm_scheme =        "mmap"
xcache.size  =                64M
xcache.count =                 4
xcache.slots =                1K
xcache.ttl   =                 3600
xcache.gc_interval =           300

xcache.var_size  =            32M
xcache.var_count =             4
xcache.var_slots =            1K
xcache.var_ttl   =             3200
xcache.var_maxttl   =          1600
xcache.var_gc_interval =     300

xcache.test =                Off
xcache.readonly_protection = On
xcache.mmap_path =    "/dev/zero"

xcache.coredump_directory =   ""

xcache.cacher =               On
xcache.stat   =               On
xcache.optimizer =           Off

[xcache.coverager]
xcache.coverager =          Off

; requires xcache.coverager=On
xcache.coveragedump_directory = ""

Hello ,

Do you see any error related to white page within your error_log ?