| UPGRADES & DOWNGRADES HISTORY |
| Date | Research Firm | Action | From | To | | 15-Sep-08 | Roth Capital | Downgrade | Buy | Hold | | 3-Jun-08 | Merriman Curhan Ford | Downgrade | Buy | Neutral | | 20-Mar-07 | Roth Capital | Upgrade | Hold | Buy | | 8-Feb-07 | Roth Capital | Downgrade | Buy | Hold | | 31-May-06 | Susquehanna Financial | Initiated | | Positive | | 1-Apr-04 | Roth Capital | Initiated | | Strong Buy | | 19-Nov-03 | Merriman Curhan Ford | Initiated | | Buy |
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| Current Month | Last Month | Two Months Ago | Three Months Ago | | Strong Buy | 0 | 0 | 0 | 0 | | Buy | 0 | 0 | 0 | 0 | | Hold | 1 | 1 | 1 | 1 | | Underperform | 0 | 0 | 0 | 0 | | Sell | 0 | 0 | 0 | 0 |
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