BB Bold 9000 :: [FIDO] SOS & Network Connections Drops Intermittent

Im having an issue with my unlocked Rogers Blackberry Bold that is on the Fido network.I keep getting intermittent connection switching from; 3G, 3g, 2G, 2g, Edge, EDGE, GSM, gsm. you get the idea Im in an area where I have fully coverage, but seems that something is wrong with my BB. Prior to this all was working fine, never a problem til now.I took my sister's sim card [Rogers] and placed into the BB, and it worked fine, was on the EDGE network but didn't drop or anything.Also I am unable to view the "Network Technology" in the Mobile Network Options. What do I do?I ran a diagonistic and here's what i got.
Diagnostic Started: May 18, 2010 10:13 AM
Diagnostic Completed: May 18, 2010 10:15 AM
PIN: xxxxxxxx
MSISDN: +x xxx xxx xxxx
Device Type: BlackBerry 9000
Application Version: v5.0.0.681
Platform Version: 5.2.0.64
Service Books: RIM_IM,BBIMConfig,BBIM,BBIM,BISClientConfig,PROVIS IONING,IPPP,BBIMConfig,BBIMConfig,WPTCP,BrowserCon fig,CMIME,CICAL,KEYNEGO
Free File Space: 43680804 bytes
Radio Data Activation: Yes
Signal Level: -105 dBm
Radio Access: EDGE
Network: Rogers Wireless <--- this is using my FIDO sim card.
IP Address: xx.xx.xx.xx.
ICMP Ping Echo: Yes
BlackBerry Registration: Yes
Connected to BlackBerry: Yes
BlackBerry PIN-PIN: Yes
Server Name: GBISXNAC02S10
Email Address: xxxxx@gmail.com
Connected to xxxxxx@gmail.com : No